Public Health Monitoring in Réunion. Bulletin dated June 26, 2026.

Key Points 

Leptospirosis 

  • The seasonal increase in leptospirosis cases, which peaked in March, has since been on a downward trend. To date, 207 locally acquired cases have been reported.

Dengue and Chikungunya

  • 52 cases of chikungunya and 306 cases of dengue have been detected since the beginning of the year. The weekly number of dengue cases remains stable.

Flu-like illness 

  • Health and virological indicators remain stable.

Bronchiolitis in children under 1 year of age 

  • Health indicators are stable.

Acute gastroenteritis

  • Health indicators are declining.

COVID-19 

  • No health impact in hospitals and no circulation of SARS-CoV-2

Smallpox B (Mpox)

  • During the month of June, 5 cases imported from Madagascar were reported, bringing the total to 20 cases (including 15 imported cases) since the beginning of the year

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